As any Mad Men fan knows, the once-trendy fedoras that men sported were hung up the second they entered the office. Author and entrepreneur Nir Eyal wants that habit to come back in style – this time, with our iPhones. Read More...

Fitness apps are all the rage. An explosion of new companies and products want to track your steps and count your calories with the aim of melting that excess blubber. There’s just one problem — most of these apps don’t work. In fact, there is good reason to believe they make us fatter. Read More...